LINKSYS HGA5S-3 Users Manual

Wireless-G VPN Broadband Router

Local Network

The Local Network information that is displayed is the IP Address, Subnet Mask, DHCP Server, and DHCP Client Lease Info. To view the DHCP Clients Table, click the DHCP Clients button. See Figure 6-36.

The DHCP Active IP Table, Figure 6-37, displays the computer name, IP Address, MAC Address and the expiration time. Click the Close button to return to the Local Network screen.

Figure 6-36: Local Network

Chapter 6: Configuring the Router Status

Figure 6-37: DHCP Active IP Table

Wireless-G VPN Broadband Router

Wireless

The Wireless Network information that is displayed is the MAC Address, Mode, SSID, Channel, and Encryption Function. (See Figure 6-38.)

Click the Refresh button if you want to Refresh your screen.

System Performance

The System Peformance information that is displayed is the Wireless, Internet, and/or LAN information for the IP Address, MAC Address, Connection Status, Packets Received, Packets Sent, Bytes Received, Bytes Sent, Error Packes Received, and Dropped Packets Received. (See Figure 6-39.)

Click the Refresh button if you want to Refresh your screen.

Figure 6-38: Wireless

Chapter 6: Configuring the Router Status

Figure 6-39: System Performance

Wireless-G VPN Broadband Router

Appendix A: Troubleshooting

This appendix consists of two parts: “Common Problems and Solutions” and “Frequently Asked Questions.” Provided are possible solutions to problems that may occur during the installation and operation of the Router. Read the descriptions below to help you solve your problems. If you can’t find an answer here, check the Linksys website at www.linksys.com.

Common Problems and Solutions

1. I need to set a static IP address on a PC.

You can assign a static IP address to a PC by performing the following steps:

• For Windows 98 and Me:

1. Click Start, Settings, and Control Panel. Double-click Network.

2. In The following network components are installed box, select the TCP/IP-> associated with your Ethernet adapter. If you only have one Ethernet adapter installed, you will only see one TCP/IP line with no association to an Ethernet adapter. Highlight it and click the Properties button.

3. In the TCP/IP properties window, select the IP address tab, and select Specify an IP address. Enter a unique IP address that is not used by any other computer on the network connected to the Router. Make sure that each IP address is unique for each PC or network device.

4. Click the Gateway tab, and in the New Gateway prompt, enter 192.168.1.1, which is the default IP address of the Router. Click the Add button to accept the entry.

5. Click the DNS tab, and make sure the DNS Enabled option is selected. Enter the Host and Domain names (e.g., John for Host and home for Domain). Enter the DNS entry provided by your ISP. If your ISP has not provided the DNS IP address, contact your ISP to get that information or go to its website for the information.

6. Click the OK button in the TCP/IP properties window, and click Close or the OK button for the Network window.

7. Restart the computer when asked.

• For Windows 2000:

1. Click Start, Settings, and Control Panel. Double-click Network and Dial-Up Connections.

2. Right-click the Local Area Connection that is associated with the Ethernet adapter you are using, and select the Properties option.

3. In the Components checked are used by this connection box, highlight Internet Protocol (TCP/IP), and click the Properties button. Select Use the following IP address option.

4. Enter a unique IP address that is not used by any other computer on the network connected to the Router.

5. Enter the Subnet Mask, 255.255.255.0.

6. Enter the Default Gateway, 192.168.1.1 (Router’s default IP address).

Appendix A: Troubleshooting Common Problems and Solutions

Wireless-G VPN Broadband Router

7. Toward the bottom of the window, select Use the following DNS server addresses, and enter the Preferred DNS server and Alternative DNS server (provided by your ISP). Contact your ISP or go on its website to find the information.

8. Click the OK button in the Internet Protocol (TCP/IP) Properties window, and click the OK button in the Local Area Connection Properties window.

9. Restart the computer if asked.

• For Windows XP: The following instructions assume you are running Windows XP with the default interface. If you are using the Classic interface (where the icons and menus look like previous Windows versions), please follow the instructions for Windows 2000.

1. Click Start and Control Panel.

2. Click the Network and Internet Connections icon and then the Network Connections icon.

3. Right-click the Local Area Connection that is associated with the Ethernet adapter you are using, and select the Properties option.

4. In the This connection uses the following items box, highlight Internet Protocol (TCP/IP). Click the Properties button.

5. Enter a unique IP address that is not used by any other computer on the network connected to the Router.

6. Enter the Subnet Mask, 255.255.255.0.

7. Enter the Default Gateway, 192.168.1.1 (Router’s default IP address).

8. Toward the bottom of the window, select Use the following DNS server addresses, and enter the Preferred DNS server and Alternative DNS server (provided by your ISP). Contact your ISP or go on its website to find the information.

9. Click the OK button in the Internet Protocol (TCP/IP) Properties window. Click the OK button in the Local Area Connection Properties window.

2. I want to test my Internet connection.

A Check your TCP/IP settings. For Windows 98, Me, 2000, and XP:

• Refer to “Chapter 4: Configure the PCs” for details. Make sure Obtain IP address automatically is selected in the settings.

For Windows NT 4.0:

• Click Start, Settings, and Control Panel. Double-click the Network icon.

• Click the Protocol tab, and double-click on TCP/IP Protocol.

• When the window appears, make sure you have selected the correct Adapter for your Ethernet adapter and set it for Obtain an IP address from a DHCP server.

• Click the OK button in the TCP/IP Protocol Properties window, and click the Close button in the Network window.

• Restart the computer if asked.

B Open a command prompt.

Appendix A: Troubleshooting Common Problems and Solutions

Wireless-G VPN Broadband Router

For Windows 98 and Me:

• Click Start and Run. In the Open field, type in command. Press the Enter key or click the OK button.

For Windows NT, 2000, and XP:

• Click Start and Run. In the Open field, type cmd. Press the Enter key or click the OK button. In the command prompt, type ping 192.168.1.1 and press the Enter key.

• If you get a reply, the computer is communicating with the Router.

• If you do NOT get a reply, please check the cable, and make sure Obtain an IP address automatically is selected in the TCP/IP settings for your Ethernet adapter.

C In the command prompt, type ping followed by your Internet or WAN IP address and press the Enter key. The Internet or WAN IP Address can be found on the Status screen of the Router’s web-based utility. For example, if your Internet or WAN IP address is 1.2.3.4, you would enter ping 1.2.3.4 and press the Enter key.

• If you get a reply, the computer is connected to the Router.

• If you do NOT get a reply, try the ping command from a different computer to verify that your original computer is not the cause of the problem.

D In the command prompt, type ping www.yahoo.com and press the Enter key.

• If you get a reply, the computer is connected to the Internet. If you cannot open a webpage, try the ping command from a different computer to verify that your original computer is not the cause of the problem.

• If you do NOT get a reply, there may be a problem with the connection. Try the ping command from a different computer to verify that your original computer is not the cause of the problem.

3. I am not getting an IP address on the Internet with my Internet connection.

• Refer to “Problem #2, I want to test my Internet connection” to verify that you have connectivity.

1. If you need to register the MAC address of your Ethernet adapter with your ISP, please see “Appendix D: Finding the MAC address and IP Address for Your Ethernet Adapter.” If you need to clone the MAC address of your Ethernet adapter onto the Router, see the System section of “Chapter 6: The Router’s Web-based Utility” for details.

2. Make sure you are using the right Internet connection settings. Contact your ISP to see if your Internet connection type is DHCP, Static IP Address, or PPPoE (commonly used by DSL consumers). Please refer to the Setup section of “Chapter 6: The Router’s Web-based Utility” for details on Internet connection settings.

3. Make sure you have the right cable. Check to see if the Internet column has a solidly lit Link/Act LED.

4. Make sure the cable connecting from your cable or DSL modem is connected to the Router’s Internet port. Verify that the Status page of the Router’s web-based utility shows a valid IP address from your ISP.

5. Turn off the computer, Router, and cable/DSL modem. Wait 30 seconds, and then turn on the Router, cable/DSL modem, and computer. Check the Status tab of the Router’s web-based utility to see if you get an IP address.

Appendix A: Troubleshooting Common Problems and Solutions

Wireless-G VPN Broadband Router

4. I am not able to access the Setup page of the Router’s web-based utility.

• Refer to “Problem #2, I want to test my Internet connection” to verify that your computer is properly connected to the Router.

1. Refer to “Appendix D: Finding the MAC Address and IP address for Your Ethernet Adapter” to verify that your computer has an IP Address, Subnet Mask, Gateway, and DNS.

2. Set a static IP address on your system; refer to “Problem #1: I need to set a static IP address.”

3. Refer to “Problem #10: I need to remove the proxy settings or the dial-up pop-up window (for PPPoE users).”

5. I can’t get my Virtual Private Network (VPN) working through the Router.

Access the Router’s web interface by going to http://192.168.1.1 or the IP address of the Router, and go to the Security tab. Make sure you have IPsec pass-through and/or PPTP pass-through enabled.

• VPNs that use IPSec with the ESP (Encapsulation Security Payload known as protocol 50) authentication will work fine. At least one IPSec session will work through the Router; however, simultaneous IPSec sessions may be possible, depending on the specifics of your VPNs.

• VPNs that use IPSec and AH (Authentication Header known as protocol 51) are incompatible with the Router. AH has limitations due to occasional incompatibility with the NAT standard.

• Change the IP address for the Router to another subnet to avoid a conflict between the VPN IP address and your local IP address. For example, if your VPN server assigns an IP address 192.168.1.X (X is a number from 1 to 254) and your local LAN IP address is 192.168.1.X (X is the same number used in the VPN IP address), the Router will have difficulties routing information to the right location. If you change the Router’s IP address to 192.168.2.1, that should solve the problem. Change the Router’s IP address through the Setup tab

• of the web interface. If you assigned a static IP address to any computer or network device on the network, you need to change its IP address accordingly to 192.168.2.Y (Y being any number from 1 to

254). Note that each IP address must be unique within the network.

• Your VPN may require port 500/UDP packets to be passed to the computer that is connecting to the IPSec server. Refer to “Problem #7, I need to set up online game hosting or use other Internet applications” for details.

• Check the Linksys website for more information at www.linksys.com.

6. I need to set up a server behind my Router and make it available to the public.

To use a server like a web, ftp, or mail server, you need to know the respective port numbers they are using. For example, port 80 (HTTP) is used for web; port 21 (FTP) is used for FTP, and port 25 (SMTP outgoing) and port 110 (POP3 incoming) are used for the mail server. You can get more information by viewing the documentation provided with the server you installed.

• Follow these steps to set up port forwarding through the Router’s web-based utility. We will be setting up web, ftp, and mail servers.

1. Access the Router’s web-based utility by going to http://192.168.1.1 or the IP address of the Router. Go to the Applications and Gaming => Port Forwarding tab.

Appendix A: Troubleshooting Common Problems and Solutions

Wireless-G VPN Broadband Router

2. Enter any name you want to use for the Customized Application.

3. Enter the External Port range of the service you are using. For example, if you have a web server, you would enter the range 80 to 80.

4. Check the protocol you will be using, TCP and/or UDP.

5. Enter the IP address of the PC or network device that you want the port server to go to. For example, if the web server’s Ethernet adapter IP address is 192.168.1.100, you would enter 100 in the field provided. Check “Appendix D: Finding the MAC Address and IP Address for Your Ethernet Adapter” for details on getting an IP address.

6. Check the Enable option for the port services you want to use. Consider the example below:

Customized External Port TCP UDP IP Address Enable Application Web server 80 to 80 X X 192.168.1.100 X FTP server 21 to 21 X 192.168.1.101 X SMTP (outgoing)25 to 25 X X 192.168.1.102 X POP3 (incoming)110 to 110 X X 192.168.1.102 X

When you have completed the configuration, click the Save Settingsbutton.

7. I need to set up online game hosting or use other Internet applications.

If you want to play online games or use Internet applications, most will work without doing any port forwarding or DMZ hosting. There may be cases when you want to host an online game or Internet application. This would require you to set up the Router to deliver incoming packets or data to a specific computer. This also applies to the Internet applications you are using. The best way to get the information on what port services to use is to go to the website of the online game or application you want to use. Follow these steps to set up online game hosting or use a certain Internet application:

1. Access the Router’s web interface by going to http://192.168.1.1 or the IP address of the Router. Go to the Applications and Gaming => Port Forwarding tab.

2. Enter any name you want to use for the Customized Application.

3. Enter the External Port range of the service you are using. For example, if you want to host Unreal Tournament (UT), you would enter the range 7777 to 27900.

4. Check the protocol you will be using, TCP and/or UDP.

6. Check the Enable option for the port services you want to use. Consider the example below:

Appendix A: Troubleshooting Common Problems and Solutions

Wireless-G VPN Broadband Router

Customized External Port TCP UDP IP Address Enable Application UT 7777 to 27900 X X 192.168.1.100 X Halflife 27015 to 27015 X X 192.168.1.105 X PC Anywhere5631 to 5631 X 192.168.1.102 X VPN IPSEC 500 to 500 X 192.168.1.100 X

When you have completed the configuration, click the Save Settings button.

8. I can’t get the Internet game, server, or application to work.

If you are having difficulties getting any Internet game, server, or application to function properly, consider exposing one PC to the Internet using DeMilitarized Zone (DMZ) hosting. This option is available when an application requires too many ports or when you are not sure which port services to use. Make sure you disable all the forwarding entries if you want to successfully use DMZ hosting, since forwarding has priority over DMZ hosting. (In other words, data that enters the Router will be checked first by the forwarding settings. If the port number that the data enters from does not have port forwarding, then the Router will send the data to whichever PC or network device you set for DMZ hosting.)

• Follow these steps to set DMZ hosting:

1. Access the Router’s web-based utility by going to http://192.168.1.1 or the IP address of the Router. Go to the Applications and Gaming => DMZ tab.

2. Disable or remove the entries you have entered for forwarding. Keep this information in case you want to use it at a later time.

• Once completed with the configuration, click the Save Settings button.

9. I forgot my password, or the password prompt always appears when I am saving settings to the Router.

• Reset the Router to factory default by pressing the Reset button for 10 seconds and then releasing it. If

you are still getting prompted for a password when saving settings, then perform the following steps:

1. Access the Router’s web-based utility by going to http://192.168.1.1 or the IP address of the Router. Enter the default password admin, and click the Administrations => Management tab.

2. Enter a different password in the Router Password field, and enter the same password in the second field to confirm the password.

3. Click the Save Settings button.

10. I am a PPPoE user, and I need to remove the proxy settings or the dial-up pop-up window.

If you have proxy settings, you need to disable these on your computer. Because the Router is the gateway for the Internet connection, the computer does not need any proxy settings to gain access. Please follow these directions to verify that you do not have any proxy settings and that the browser you use is set to connect directly to the LAN.

Appendix A: Troubleshooting Common Problems and Solutions

Wireless-G VPN Broadband Router

• For Microsoft Internet Explorer 5.0 or higher:

1. Click Start, Settings, and Control Panel. Double-click Internet Options.

2. Click the Connections tab.

3. Click the LAN settings button and remove anything that is checked.

4. Click the OK button to go back to the previous screen.

5. Click the option Never dial a connection. This will remove any dial-up pop-ups for PPPoE users.

• For Netscape 4.7 or higher:

1. Start Netscape Navigator, and click Edit, Preferences, Advanced, and Proxies.

2. Make sure you have Direct connection to the Internet selected on this screen.

3. Close all the windows to finish.

11. To start over, I need to set the Router to factory default.

Hold the Reset button for 10 seconds and then release it. This will return the password, forwarding, and other settings on the Router to the factory default settings. In other words, the Router will revert to its original factory configuration.

12. I need to upgrade the firmware.

In order to upgrade the firmware with the latest features, you need to go to the Linksys website and download the latest firmware at www.linksys.com.

• Follow these steps:

1. Go to the Linksys website at http://www.linksys.com and download the latest firmware.

2. To upgrade the firmware, follow the steps in the System section found in “Chapter 6: The Router’s Web-based Utility.”

13. The firmware upgrade failed, and/or the Power LED is flashing.

The upgrade could have failed for a number of reasons. Follow these steps to upgrade the firmware and/or make the Power LED stop flashing:

• If the firmware upgrade failed, use the TFTP program (it was downloaded along with the firmware). Open the pdf that was downloaded along with the firmware and TFTP program, and follow the pdf’s instructions.

• Set a static IP address on the PC; refer to “Problem #1, I need to set a static IP address.” Use the following IP address settings for the computer you are using:

IP Address: 192.168.1.50 Subnet Mask: 255.255.255.0 Gateway: 192.168.1.1

• Perform the upgrade using the TFTP program or the Router’s web-based utility through its Administration tab.

Appendix A: Troubleshooting Common Problems and Solutions

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